1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Harrizon [31]
3 years ago
5

Which description accurately describes the cell membrane?

Biology
1 answer:
Alex Ar [27]3 years ago
4 0

Answer:

b. a semi-permeable double layer of phospholipids that have hydrophilic heads and hydrophobic tails

Explanation:

B is correct as the cell membrane is selectively semi-permeable. It is selectively semi-permeable because this quality allows it to control what can and can't enter the cell, and how it does so.

The cell membrane also has a phospholipid bi-layer comprised of a double layer of phospholipids which have hydrophilic head and hydrophobic tails. This is because the heads are made of phosphate and are polar and are therefore attracted to water (hydrophilic), while the tails are made of lipids (i.e. fats, oils) which do not mix with water and are therefore hydrophobic.

The properties of each phospholipid is also why they form the double layer structure, the hydrophilic heads naturally face outwards into the water and protect the hydrophobic tails on the inside.

Hope this helped!

You might be interested in
Which renewable energy is used quite frequently in the u.s. and canada
Serhud [2]
The renewable energy source is Hydroelectricity.
8 0
3 years ago
Which of these does organic farming use?
Sunny_sXe [5.5K]
E is the right answer
5 0
3 years ago
Microorganisms can improve soil health, but do not play a crucial role in it.<br> T or F?
Alex777 [14]

Answer:

False

Explanation:

4 0
2 years ago
A tsunami wave is destructive because it has very large period frequency amplitude wavelength
vovikov84 [41]
Tsunami has a very large WAVELENGTH and therefore, is more devastating.
6 0
3 years ago
What are 3 antibiotic factors where emperor penguins live
Dennis_Churaev [7]
Your Question;
<span>What are 3 abiotic factors where emperor penguins live?
My Answer;
First, we need to know what "abiotic" means. Abiotic non-living, now that we know what "abiotic" means we can determine three abiotic factors.  
One: Snow
Two: Wind and Water ( These are two different ones but I wanted to put it as one)
Three: Soil/Dirt.
Hope I helped, 
♥ Sir Chub-Chubs.

</span>
7 0
3 years ago
Other questions:
  • The process of structural change over a long period of time that explain diversity of living thing is known as
    7·1 answer
  • Can someone simply explain what hyponatremia is
    11·2 answers
  • Which of the following is not true concerning rainforests? a. Twenty-five percent of western pharmaceuticals are derived from ra
    12·1 answer
  • Where do westerlies occur
    12·1 answer
  • Which is a arrangement of genes consist of an operator , a promoter ,and a repressor?
    11·1 answer
  • In the space below write a logo advertising the importance of genetic diversity to a population
    9·1 answer
  • Explain the difference between ionic compounds and covalently bonded compounds. How do the two types of bonds differ?
    6·1 answer
  • ______ happens when rain, snow, sleet, and hail that falls from the clouds to the earth’s surface.
    8·1 answer
  • If a robin builds a nest in a big tree, the robin benefits and the tree is not helped or harmed. This type of symbiotic relation
    14·1 answer
  • An organism that produces its food by photosynthesis
    7·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!